1 /****************************************************************************** 2 * 3 * Copyright (C) 2009-2012 Broadcom Corporation 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ******************************************************************************/ 18 19 /****************************************************************************** 20 * 21 * Filename: bte_main.c 22 * 23 * Description: Contains BTE core stack initialization and shutdown code 24 * 25 ******************************************************************************/ 26 27 #define LOG_TAG "bt_main" 28 29 #include <assert.h> 30 #include <cutils/properties.h> 31 #include <fcntl.h> 32 #include <hardware/bluetooth.h> 33 #include <pthread.h> 34 #include <signal.h> 35 #include <stdlib.h> 36 #include <time.h> 37 38 #include "osi/include/alarm.h" 39 #include "bta_api.h" 40 #include "bt_hci_bdroid.h" 41 #include "bte.h" 42 #include "btif_common.h" 43 #include "btu.h" 44 #include "btsnoop.h" 45 #include "bt_utils.h" 46 #include "btcore/include/counter.h" 47 #include "btcore/include/module.h" 48 #include "osi/include/fixed_queue.h" 49 #include "osi/include/future.h" 50 #include "gki.h" 51 #include "osi/include/hash_functions.h" 52 #include "osi/include/hash_map.h" 53 #include "hci_layer.h" 54 #include "osi/include/osi.h" 55 #include "osi/include/log.h" 56 #include "stack_config.h" 57 #include "osi/include/thread.h" 58 59 /******************************************************************************* 60 ** Constants & Macros 61 *******************************************************************************/ 62 63 /* Run-time configuration file for BLE*/ 64 #ifndef BTE_BLE_STACK_CONF_FILE 65 #define BTE_BLE_STACK_CONF_FILE "/etc/bluetooth/ble_stack.conf" 66 #endif 67 68 /****************************************************************************** 69 ** Variables 70 ******************************************************************************/ 71 72 /******************************************************************************* 73 ** Static variables 74 *******************************************************************************/ 75 static const hci_t *hci; 76 77 /******************************************************************************* 78 ** Static functions 79 *******************************************************************************/ 80 81 /******************************************************************************* 82 ** Externs 83 *******************************************************************************/ 84 extern void bte_load_ble_conf(const char *p_path); 85 fixed_queue_t *btu_hci_msg_queue; 86 87 /****************************************************************************** 88 ** 89 ** Function bte_main_boot_entry 90 ** 91 ** Description BTE MAIN API - Entry point for BTE chip/stack initialization 92 ** 93 ** Returns None 94 ** 95 ******************************************************************************/ 96 void bte_main_boot_entry(void) 97 { 98 module_init(get_module(GKI_MODULE)); 99 module_init(get_module(COUNTER_MODULE)); 100 101 hci = hci_layer_get_interface(); 102 if (!hci) 103 LOG_ERROR("%s could not get hci layer interface.", __func__); 104 105 btu_hci_msg_queue = fixed_queue_new(SIZE_MAX); 106 if (btu_hci_msg_queue == NULL) { 107 LOG_ERROR("%s unable to allocate hci message queue.", __func__); 108 return; 109 } 110 111 data_dispatcher_register_default(hci->event_dispatcher, btu_hci_msg_queue); 112 hci->set_data_queue(btu_hci_msg_queue); 113 114 #if (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE)) 115 bte_load_ble_conf(BTE_BLE_STACK_CONF_FILE); 116 #endif 117 module_init(get_module(STACK_CONFIG_MODULE)); 118 } 119 120 /****************************************************************************** 121 ** 122 ** Function bte_main_shutdown 123 ** 124 ** Description BTE MAIN API - Shutdown code for BTE chip/stack 125 ** 126 ** Returns None 127 ** 128 ******************************************************************************/ 129 void bte_main_shutdown() 130 { 131 data_dispatcher_register_default(hci_layer_get_interface()->event_dispatcher, NULL); 132 hci->set_data_queue(NULL); 133 fixed_queue_free(btu_hci_msg_queue, NULL); 134 135 btu_hci_msg_queue = NULL; 136 137 module_clean_up(get_module(STACK_CONFIG_MODULE)); 138 139 module_clean_up(get_module(COUNTER_MODULE)); 140 module_clean_up(get_module(GKI_MODULE)); 141 } 142 143 /****************************************************************************** 144 ** 145 ** Function bte_main_enable 146 ** 147 ** Description BTE MAIN API - Creates all the BTE tasks. Should be called 148 ** part of the Bluetooth stack enable sequence 149 ** 150 ** Returns None 151 ** 152 ******************************************************************************/ 153 void bte_main_enable() 154 { 155 APPL_TRACE_DEBUG("%s", __FUNCTION__); 156 157 module_start_up(get_module(BTSNOOP_MODULE)); 158 module_start_up(get_module(HCI_MODULE)); 159 160 BTU_StartUp(); 161 } 162 163 /****************************************************************************** 164 ** 165 ** Function bte_main_disable 166 ** 167 ** Description BTE MAIN API - Destroys all the BTE tasks. Should be called 168 ** part of the Bluetooth stack disable sequence 169 ** 170 ** Returns None 171 ** 172 ******************************************************************************/ 173 void bte_main_disable(void) 174 { 175 APPL_TRACE_DEBUG("%s", __FUNCTION__); 176 177 module_shut_down(get_module(HCI_MODULE)); 178 module_shut_down(get_module(BTSNOOP_MODULE)); 179 180 BTU_ShutDown(); 181 } 182 183 /****************************************************************************** 184 ** 185 ** Function bte_main_postload_cfg 186 ** 187 ** Description BTE MAIN API - Stack postload configuration 188 ** 189 ** Returns None 190 ** 191 ******************************************************************************/ 192 void bte_main_postload_cfg(void) 193 { 194 hci->do_postload(); 195 } 196 197 #if (defined(HCILP_INCLUDED) && HCILP_INCLUDED == TRUE) 198 /****************************************************************************** 199 ** 200 ** Function bte_main_enable_lpm 201 ** 202 ** Description BTE MAIN API - Enable/Disable low power mode operation 203 ** 204 ** Returns None 205 ** 206 ******************************************************************************/ 207 void bte_main_enable_lpm(BOOLEAN enable) 208 { 209 hci->send_low_power_command(enable ? LPM_ENABLE : LPM_DISABLE); 210 } 211 212 /****************************************************************************** 213 ** 214 ** Function bte_main_lpm_allow_bt_device_sleep 215 ** 216 ** Description BTE MAIN API - Allow BT controller goest to sleep 217 ** 218 ** Returns None 219 ** 220 ******************************************************************************/ 221 void bte_main_lpm_allow_bt_device_sleep() 222 { 223 hci->send_low_power_command(LPM_WAKE_DEASSERT); 224 } 225 226 /****************************************************************************** 227 ** 228 ** Function bte_main_lpm_wake_bt_device 229 ** 230 ** Description BTE MAIN API - Wake BT controller up if it is in sleep mode 231 ** 232 ** Returns None 233 ** 234 ******************************************************************************/ 235 void bte_main_lpm_wake_bt_device() 236 { 237 hci->send_low_power_command(LPM_WAKE_ASSERT); 238 } 239 #endif // HCILP_INCLUDED 240 241 /****************************************************************************** 242 ** 243 ** Function bte_main_hci_send 244 ** 245 ** Description BTE MAIN API - This function is called by the upper stack to 246 ** send an HCI message. The function displays a protocol trace 247 ** message (if enabled), and then calls the 'transmit' function 248 ** associated with the currently selected HCI transport 249 ** 250 ** Returns None 251 ** 252 ******************************************************************************/ 253 void bte_main_hci_send (BT_HDR *p_msg, UINT16 event) 254 { 255 UINT16 sub_event = event & BT_SUB_EVT_MASK; /* local controller ID */ 256 257 p_msg->event = event; 258 259 counter_add("main.tx.packets", 1); 260 counter_add("main.tx.bytes", p_msg->len); 261 262 if((sub_event == LOCAL_BR_EDR_CONTROLLER_ID) || \ 263 (sub_event == LOCAL_BLE_CONTROLLER_ID)) 264 { 265 hci->transmit_downward(event, p_msg); 266 } 267 else 268 { 269 APPL_TRACE_ERROR("Invalid Controller ID. Discarding message."); 270 GKI_freebuf(p_msg); 271 } 272 } 273
